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GRAVEL <br />� <br />GRAINED <br />I SOILS <br />I <br />IM1 ' `2E THAN 50 °� <br />RETAINED ON <br />N0.200 SIEVE <br />I <br />I FINE- <br />I GRAINED <br />SOILS <br />� <br />MORE THAN 50 % <br />I PASSES <br />NO. 200 SIEVE <br />UNIFIED SOIL CLASSIFICATION SYSTEM <br />MAJOR DIVISIONS <br />GRAVEL <br />MORE THAN 50 % <br />OF COARSE FRACTION <br />RETAINED ON <br />N0.4 SIEVE <br />SAND <br />MORETHAN50% <br />OF COARSE FRACTION <br />PASSES NO. 4 SIEVE <br />SILT AND :,LAY <br />LI�UID LIMIT <br />LESS THAN 50 °/, <br />SILT AND CLAY <br />LIQUID LIMIT <br />50 % OR MORE <br />HIGHLY ORGANIC SOILS <br />1) Fiold classifiwtion is based on visual <br />examinalicn of soil In general <br />accordanco wilh ASTM D 2488•93. <br />2) Soil classificalion using labratory tests <br />is based on ASTM D 2488•93. <br />3) Dosaiptions ol soil denslly or <br />consistency are based on <br />inlerpretalion of blowcount data, <br />visual appearance of soils, and/or <br />test data. <br />PROJECT NUAIBER <br />i <br />36s5o2 Strickland/Nielsen <br />Figure 3 <br />Soil Classification <br />CLEAN <br />GRAVEL <br />GRAVEL <br />WITH FINES <br />CLEAN <br />SAND <br />SAND <br />1�VITH FINES <br />INORGANIC <br />ORGANIC <br />INORGANIC <br />ORGANIC <br />GROUP <br />SYMBOL <br />GW <br />GP <br />GM <br />GC <br />SW <br />SP <br />SM <br />SC <br />ML <br />CL <br />OL <br />MH <br />CH <br />OH <br />PT <br />GROUP NAME <br />WELL•GRADED, FINE TO COARSE GR4VEL <br />POORLY-GRADED GRAVEL <br />SILTY GRAVEL <br />CLAYEY GRAVEL <br />WELL•GRADED SAND, FINE TO COARSE SAND <br />POORLY G W .DED SAND <br />SILTY SAND <br />CLAYEYSAND <br />si�r <br />CLAY <br />ORGANIC SILT, ORGANIC CLA <br />SILT OF HIGH PLASTICITY, ELASTIC SILT <br />CLAY OF HIGH PLASTICIN, FLAT CLAY <br />ORGANIC CLAY, ORGANIC SILT <br />PEAT <br />SOIL MOISTURE MODIFIERS: <br />Dry - Absence of moisture, dusty, dry to <br />lhe touch <br />Moist - Damp, but no visible water. <br />Wel - Visible free waler or salurated, <br />usually soil is obtained 6om <br />below water table <br />/ v/��� NEL.SON GEOTECHNICAL No. Dalo Revialon By CK � <br />(v� (�qZ ASSOCIATES, INC. � �� on�ai na oun � <br />GEOTECHNICAL ENGINEERS & GEOLOGISTS g <br />�rn�-�nM n.. v..-ta s�a 4« c..�.1 �f) vr-���a <br />� <br />•� 9NIl ��/qnan (yY1 l�p�-]I]p � <br />(�:1) �!0-IN� / le� �t�_3510 ��� w�a�nlM <br />Z <br />